Yarn package holder



May 22, 1934. M. KRISSIEP YARN PACKAGE HOLDER Filed Feb. 24, 1931 INVENTOR: Diana 113 65556 ATTORINE Patented May 22, 1934 PATENT OFFICE YARN PACKAGE HOLDER Max Krissiep, Wyomissing, Pa.,

assignor to Textile Machine Works, Wyomissing, Pa., a corporation of Pennsylvania.

Application February 24, 1931, Serial No. 517,814 Claims. (01. 242-462) This invention relates generally to a bobbin, or yarn package holders, and more particularly to the type used in braiding, winding, spinning, or similar machines.

5 One object of the invention is to provide a novel yarn package holder capable of retaining and releasing a bobbin or yarn package by partially rotating it on the holder.

Another object is the provision of a quick act- '10 ing yarn package holder which is simple in construction and operation and made of parts that can be cheaply manufactured.

The invention comprises the novel elements, features of construction and arrangement of 1 5; parts in cooperative relationship as herein disclosed by the following detailed description and accompanying drawing of one embodiment thereof, reference to which will make the above and other objects as well as attendant advantages 29 more readily apparent.

In the drawing:

Fig. 1 is a side elevational view of the yarn package holder of my invention.

Fig. 2 is a cross-sectional view, taken as indi- 125; cated by the arrows 22 on Fig. 1.

Fig. 3 is a cross-sectional view, similar to Fig.

2, but showing certain parts in another position.

Fig. 4 is a perspective view of a yarn package locking member, forming part of my invention.

With reference to the drawing, 5 generally designates a tubular yarn package mounting stem,

6 a suitable ratchet feed element secured thereto, '7 a reduced eccentric part on the stem, and

8 a bobbin locking sleeve turnably mounted on part 7.

A yarn carrying bobbin or tube indicated by the dot-and-dash lines 9, is firmly held on the stem 5 during winding or unwinding of the yarn, represented in outline at 10.

14.0. In the present instance, the sleeve 8 consists of a piece of sheet metal which is rolled about the eccentric part 7, with one of its edges bent so as to form a radial projection, or eccentric part 11, extending beyond the outer periphery thereof.

145 The locking sleeve 8 is thus of substantially tubular form but split longitudinally at the meeting portions of the body at the bent area thereof where the eccentric lip part 11 initiates.

. Figs. 1 and 2 show the sleeve 8 in position for looking or retaining the tube 9 on the holder, while Fig. 3 illustrates the tube applying, or release position of the sleeve. It will be noted that in release position, the part 11 extends somewhat beyond the concentric part 5a of stem 5,

and that the inner periphery of tube 9 contacts with the concentric part 5a and the eccentric part 11 of the sleeve, so that as the tube 9 is turned in the direction indicated by the arrow in Fig. 3, the sleeve 8 will be simultaneously 0 turned therewith and the part 11 gradually pressed into the tube 9 (see Figs. 1 and 2) thereby to firmly hold the same. Preferably, and. as shown in the drawing, the sleeve 8 is formed from relatively thin sheet metal, and is longitudinally split throughout its length from top to bottom. Sheet metal, particularly of the gauge disclosed, inherently possesses a certain amount of flexibility, and therefore in the split sleeve construction shown, when the lip part 11 is pressed into the interior of the tube 9 during continued rotative movement of the latter, as for instance when increased tension is applied to the material being unwound from the tube 9, or when it may be desirable to resort to braking to retard rotation of the mounting stem 5, the body of the sleeve 8 will spread or expand slightly and firmly embed the long lip of the part 11, throughout the extent of its outer edge, in the inner wall of the tube 9, even though the turning movement of the sleeve may be limited by the stop members 12 and 13a. This construction further contributes toward the firm gripping and nonslip characteristics of the sleeve, as distinguished from unitary or solid eccentric wedging members which would be apt to slip under additional stress,

or more or less rigid claws or projections which under similar conditions would be likely to tear or strip the wall of the tube 9.

In order that the sleeve 8 may be properly positioned for retaining or releasing the tube 9, movement limiting means are provided for the former, in the present instance consisting of one or more abutment members or projections 12 on stem part 512, cooperatively aligned with shoulders 13 and 13a on sleeve 8, formed by recessing the ends of the latter.

To apply a yarn tube or spool to the holder, it is merely necessary to turn the sleeve 8 to the position of Fig. 3, while sliding the spool on the stem 5, or previously, then turn the spool until the shoulders 13 strike against projections 12, as shown in Fig. 2. Release of the spool is effected by turning it in the direction of the arrow in Fig. 2, and until shoulders 13a strike members 12, after which it can be easily withdrawn from the stem.

It will be apparent that the ratchet feed element 6 can be applied at another point on the stem 5, or entirely omitted, depending on the particular braiding carrier or machine to which the holder is to be cooperatively applied.

Of course, the yarn package holder shown and described can also be changed and modified in various Ways without departing from the invention herein set forth and hereinafter claimed.

I claim:

1. A yarn package holder or the like including a stem and an eccentrically movable gripping sleeve thereon, said sleeve being split from end to end and including an outwardly bent package engaging lip portion.

2. A strand package holder comprising a shaft, an eccentric portion thereon, a stamped metal sleeve member surrounding the shaft and having a longitudinally extending flanged portion extending radially therefrom with, the outer edge of the flanged portion projectable into contact with the inner face of the strand package by the action of the eccentric portion of said shaft when the package is rotated.

3. A strand package holder comprising a shaft concentric in cross section in certain portions and eccentric in other portions thereof, a stamped sheet metal engaging member surrounding the eccentric portion, said member being split 1ongitudinally and having a lip portion formed at one of the edges of the member adjacent said split, said lip portion extending outwardly radially from said member and having its outer edge rotatable into contact with the inner face of the strand package by the action of the eccentric portion of said shaft when the package is rotated.

4. A yarn package holder having a spindle shaft comprising concentric end portions and a central eccentric portion, stops formed integral with the end portions, a split sleeve member rotatably mounted on the eccentric portion and having end portions extending into the area of the stationary stops, and having a side portion projecting radially from the sleeve member adjacent the split for engagement with a yarn package.

5. A yarn package holder or the like including a stem and package gripping sleeve movably mounted thereon, said sleeve comprising a sheet metal body split from top to bottom and including a lip portion extending outwardly beyond its periphery and uniformly from top to bottom of said stem, said lip portion having the outer edge thereof movable into gripping engagement with the inner face of the yarn package, said stem including abutment means to limit the turning movement of said sleeve, and said sleeve having cooperative shoulders engageable with said abutment means in opposite directions of sleeve movement.

MAX KRISSIEP.

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